Running grub2-install after Fedora version upgrade

Ask Fedora
1

Once upon a time, it was advised:

“Systems with the BIOS firmware have the GRUB RPM packages updated. However, the installed or embedded bootloader is never updated automatically. It is a good idea to update it between Fedora release versions.”

In the olden days, this command used to output:

Installing for i386-pc platform.
Installation finished. No error reported.

I have a UEFI BIOS and Fedora 41, and the command “grub2-install /dev/sda” can’t find the file it needs anyway:

grub2-install: error: /usr/lib/grub/x86_64-efi/modinfo.sh doesn’t exist. Please specify --target or --directory.

I have a feeling a manual grub2-install run is either no longer recommended or that current grub2 updates take care of keeping the boot block (or whetever it’s called) up to date.

Is this the case?

2

That is not just a feeling. It is documented that you do not run grub2-install when booted in UEFI mode. Instead the grub2 components are loaded directly into /boot/efi when installing the various grub2 packages.

You can run grub2-mkconfig -o /boot/grub2/grub.cfg to update the grub.cfg file.

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3

See the difference between UEFI and BIOS systems at step 11: